Home / 15,121.75-22,683.12-5,261.12

Finding the Fourth Proportional to 15,121.75, 22,683.12 and 5,261.12

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Solution

The fourth proportional to 15,121.75, 22,683.12 and 5,261.12 is: 7,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121.75 : 22,683.12 = 5,261.12 : x
  2. Step 2: Convert to fraction form
    15,121.75/22,683.12 = 5,261.12/x
  3. Step 3: Cross multiply
    15,121.75x = 22,683.12 × 5,261.12
  4. Step 4: Simplify right side
    15,121.75x = 119,338,616.29
  5. Step 5: Solve for x
    x = 119,338,616.29/15,121.75
  6. Step 6: Final answer
    x = 7,891.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.